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STC 32 to 40 in a 1-5/8 Inch Frame Profile
Models 321 and 322 use single-center glass panels from 5/16 to 3/8 inch thick (8-10mm) in tempered, laminated, or tempered-laminated configurations. The frame profile height is 1 inch (25.4mm), creating a narrow visual line between adjacent glass panels.
Junction options include polycarbonate joints for a discreet, nearly invisible connection between panels, or two-face tape for an adhesive-bonded joint. Gaskets are available in black only. Door options are limited to glass pivot doors on the Compact Series.
The Compact Series is specified for open-plan offices, reception areas, and commercial environments where the demountable partition needs to disappear visually while still providing acoustic separation between STC 32 (single glass) and STC 40 (double glass).
Moderco EXTANZA 300 Demountable Wall Systems for NYC Commercial Projects
Moderco NYC is the authorized Moderco distributor for demountable wall systems in the New York City metro area. The EXTANZA 300 is the only demountable partition in our portfolio with published STC ratings, reaching up to STC 50 with double panel configurations.
The Only Demountable Wall System in the Portfolio with Published Acoustic Data
Moderco Inc. manufactures the EXTANZA 300 glass partition and demountable wall system from its Montreal-region facility. The EXTANZA 300 is available in four models across two performance tiers, with independently tested STC ratings published for every configuration. This makes Moderco the only demountable wall manufacturer in the Moderco NYC portfolio where architects can specify acoustic performance with verified data rather than manufacturer claims.
Moderco for Both Demountable and Operable Walls
Moderco is represented by Moderco NYC for both demountable wall systems (EXTANZA 300) and operable partition systems (Signature 800, Excel 700, Crystal 200, Vision 100). Projects that require both product categories from a single manufacturer can source everything through one distributor with one contract and one installation team. For Moderco’s operable wall product lines, visit our Moderco operable walls page.
Two Performance Tiers for Different Acoustic and Functional Requirements
The EXTANZA 300 demountable wall system is available in two tiers. Both use glass and aluminum construction with Moderco’s proprietary frame profiles. The Compact Series prioritizes minimal visual profile. The Premium Series adds higher acoustic performance, solid panel options, and electrical wiring integration.
Minimal-profile demountable glass partitions with STC ratings from 32 to 40. Frame thickness of 1-5/8 inches (41.3mm) with a 1-inch profile height. Glass thickness from 5/16 to 3/8 inch. Polycarbonate or tape junctions for a discreet joint appearance. Glass pivot doors. Designed for environments where visual minimalism and daylight penetration are the primary requirements.
Higher-performance demountable wall system with STC ratings from 34 to 50. Frame thickness of 3-1/2 inches (88.9mm) with a 1-11/16 inch profile height. Supports glass, solid panels, and mixed configurations. Aluminum post junctions with 3-direction and 90-degree corner options. Full door selection (glass, wood, aluminum). Electrical wiring integration through the wall cavity.
Models 321 and 322. Minimal Profile Demountable Glass Partitions
The Compact Series is the entry point of the EXTANZA 300 line. It delivers acoustic separation from STC 32 to STC 40 in a frame profile that measures just 1-5/8 inches thick, making it one of the slimmest demountable wall systems available through Moderco NYC.
Models 331 and 332. Higher Acoustics with Electrical Integration
The Premium Series is the full-capability tier of the EXTANZA 300. It delivers STC ratings up to 50 with double panel configurations and supports electrical wiring integration through the wall cavity, making it the most technically complete demountable wall system in the Moderco NYC portfolio.
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STC 34 to 50 with Glass, Solid Panel, and Mixed Configurations
Models 331 and 332 support three panel configurations: single glass (3/8 to 1/2 inch, STC 34-38), double glass (3/8 to 1/2 inch, STC 42-47), and double solid panels (1/2 to 5/8 inch, STC 50). The frame profile is 3-1/2 inches thick (88.9mm) with a height of 1-11/16 inches (43.2mm).
Junction options include aluminum posts with 3-direction and 90-degree corner configurations, polycarbonate joints, and two-face tape. Gaskets are available in gray, black, and white. Glass and panel transom connections are supported for floor-to-ceiling installations with varying header conditions.
Door options on the Premium Series include glass doors (sliding, hinged, or pivot), wood doors (hinged or sliding, solid core), and aluminum doors (hinged, with single or double glass from 5/16 to 3/8 inch). Electrical wiring can be routed through the 3-1/2 inch wall cavity, eliminating the need for external conduit in office environments that require power and data at the partition line.
EXTANZA 300 Specifications at a Glance
This summary table compares the two EXTANZA 300 performance tiers available through Moderco NYC in the NYC metro area. For full technical specifications, brochures, and CAD files, visit our resources library.
| Specification | Model 321 | Model 322 | |
|---|---|---|---|
|
Series |
Compact |
Compact |
|
|
Glass Config |
Single center |
Double |
|
|
STC (single glass) |
32 to 38 |
N/A |
|
|
STC (double glass) |
N/A |
36 to 40 |
|
|
STC (double panels) |
N/A |
N/A |
|
|
Glass Thickness |
5/16" to 3/8" (8-10mm) |
5/16" to 3/8" (8-10mm) |
|
|
Solid Panels |
N/A |
N/A |
|
|
Frame Thickness |
1-5/8" (41.3mm) |
1-5/8" (41.3mm) |
|
|
Profile Height |
1" (25.4mm) |
1" (25.4mm) |
|
|
Junctions |
Polycarbonate, tape |
Polycarbonate, tape |
|
|
Gasket Colors |
Black |
Black |
|
|
Door Options |
Glass pivot |
Glass pivot |
|
|
Electrical |
No |
No |
|
|
Transom |
No |
No |
| Specification | Model 331 | Model 332 | |
|---|---|---|---|
|
Series |
Premium |
Premium |
|
|
Glass Config |
Single (offset/center) or double |
Double |
|
|
STC (single glass) |
32 to 38 |
N/A |
|
|
STC (double glass) |
42 to 47 |
42 to 47 |
|
|
STC (double panels) |
50 |
50 |
|
|
Glass Thickness |
3/8" to 1/2" (10-12mm) |
3/8" to 1/2" (10-12mm) |
|
|
Solid Panels |
1/2" to 5/8" (12-15.9mm) |
1/2" to 5/8" (12-15.9mm) |
|
|
Frame Thickness |
3-1/2" (88.9mm) |
3-1/2" (88.9mm) |
|
|
Profile Height |
1-11/16" (43.2mm) |
1-11/16" (43.2mm) |
|
|
Junctions |
Aluminum posts, polycarbonate, tape |
Aluminum posts, polycarbonate, tape |
|
|
Gasket Colors |
Gray, black, white |
Gray, black, white |
|
|
Door Options |
Glass, wood, aluminum (single glass) |
Glass, wood, aluminum (double glass) |
|
|
Electrical |
Yes |
Yes |
|
|
Transom |
Yes (with post junction) |
Yes (with post junction) |
Aluminum Frame Finishes Across the EXTANZA 300 Range
Every EXTANZA 300 model uses an aluminum structural frame that accepts a range of finishes to coordinate with the interior design of the surrounding space. Moderco offers one of the widest frame color ranges of any demountable wall manufacturer in the portfolio.
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Over 180 Painted Colors Plus Standard Anodized Options
Standard frame finishes include clear anodized and multiple anodized color options. Custom painted finishes are available in over 180 colors, giving architects precise control over how the demountable partition integrates with the office interior. Glass panels are available in tempered, laminated, and tempered-laminated configurations. All glass is 100% recyclable. Solid panels for the Premium Series (331/332) are available in base colors and wood grain finishes in horizontal or vertical double configurations.
Published STC Data for NYC Architects Who Need Verified Acoustic Specifications
The EXTANZA 300 is the only demountable wall system in the Moderco NYC portfolio with independently tested and published STC ratings. For NYC architects working on projects where acoustic performance must be documented for building code compliance or tenant lease requirements, this is a meaningful differentiator.
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Verified Acoustic Performance for NYC Office and Institutional Projects
New York City’s commercial office market requires demountable wall systems that meet specific acoustic standards for private offices, conference rooms, and executive suites. Standard private offices typically require STC 35 to 40. Executive offices and conference rooms may require STC 45 or higher. The EXTANZA 300 Premium Series covers this full range with published data for every configuration, from STC 34 (single glass) to STC 50 (double panels). NYC architects can specify Moderco demountable walls with confidence that the installed system will meet the documented acoustic targets.
Moderco Demountable Wall Installation and Maintenance by a New York City Team
Moderco NYC provides full-service installation and ongoing maintenance for every Moderco demountable wall system sold in the NYC metro area. Our crew coordinates directly with Moderco’s engineering team throughout the project.
From Shop Drawings to Final Inspection, Handled Locally
Every EXTANZA 300 installation through Moderco NYC includes shop drawing coordination with Moderco, pre-installation site measurement, frame installation, glass and panel hanging, door hardware calibration, and final acoustic verification. For existing EXTANZA 300 installations, our maintenance team handles glass replacement, gasket service, door adjustments, and reconfiguration support across all five boroughs and the surrounding metro area. Moderco’s snap-in glazing system simplifies panel replacement without dismantling the frame structure.
Common Questions About Moderco EXTANZA 300 Demountable Walls
Answers to the questions architects and contractors ask most when evaluating Moderco demountable wall systems for NYC projects.
The EXTANZA 300 Compact Series (Models 321/322) achieves STC 32 to 40 depending on glass configuration. The Premium Series (Models 331/332) achieves STC 34 to 50, with the highest rating available in double solid panel configuration. These are published, independently tested ratings, making Moderco the only demountable wall manufacturer in the Moderco NYC portfolio with verified acoustic data.
The Compact Series (321/322) uses a 1-5/8 inch frame with glass-only panels, polycarbonate joints, and glass pivot doors. The Premium Series (331/332) uses a 3-1/2 inch frame with glass, solid panel, and mixed configurations, aluminum post joints, full door options (glass, wood, aluminum), and electrical wiring integration through the wall cavity. The Premium Series delivers higher STC ratings (up to 50 vs. 40) and supports more complex architectural configurations.
Yes, but only through the Premium Series (Models 331/332). The 3-1/2 inch frame cavity accommodates electrical wiring for power and data at the partition line. The Compact Series (321/322) does not support internal wiring due to its narrower 1-5/8 inch frame profile.
Yes. Moderco manufactures both demountable wall systems (EXTANZA 300) and operable partition systems (Signature 800, Excel 700, Crystal 200, Vision 100). Both product categories are available through Moderco NYC in the NYC metro area. For Moderco’s movable partition product lines, visit our Moderco operable walls page.
Aluminum frame finishes include standard anodized options and over 180 custom painted colors. Glass panels are available in tempered, laminated, and tempered-laminated configurations. Solid panels for the Premium Series come in base colors and wood grain finishes. All glass used in the EXTANZA 300 is 100% recyclable.
NYC Professionals on Working with Moderco NYC and Moderco Demountable Walls
Feedback from architects, contractors, and facility managers who have specified or installed Moderco demountable wall systems through Moderco NYC.
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